Is optoelectronic plethysmography a valid instrument to measure inspiratory capacity?
DOI:
https://doi.org/10.590/1809-2950/13875622022015Abstract
The aim of this study was to evaluate the concurrent validity of the optoelectronic plethysmography (OEP) to measure inspiratory capacity (IC) at rest and during submaximal exercise in healthy subjects. Twelve subjects (6 Male/6 Female; 23.8±1.34 yrs) with normal body mass index and lung function completed the study protocol. Participants were assessed at rest and during a 12-minute submaximal exercise protocol on a cycle ergometer. IC maneuvers were simultaneously recorded by OEP system and by a spirometer at rest and during exercise. The percentage of discrepancy between measurements, linear regression analysis and Bland-Altman method were used for data analysis. The study was approved by the institution ethics committee. It was considered 150 valid IC maneuvers for analysis (44 for resting and 106 for exercise). The percentage of discrepancy between the measurements were -9.6 (8.6%) at rest and -4.6 (5.5%) during exercise. Regression analysis showed good linear associations between methods at rest (r2=0.90; p=0.0002) and during exercise (r2=0.96; p=0.0008). Bland-Altman analysis using data obtained during exercise showed a bias between the two methods of 0.13L. The limits of agreement indicate that the difference between methods can vary from -0.04L to 0.57L. Additionally, data was equally distributed between the upper and lower limits, demonstrating no systematic overestimation or underestimation of the IC by any of the instruments. In conclusion, this study demonstrated that the OEP is a valid evaluation system to measure IC of healthy individuals at rest and during submaximal exercise.Downloads
References
Gadotti IC, Vieira ER, Magee DJ. Importance and clarification
of measurement properties in rehabilitation. Rev Bras
Fisioter. 2006;10(2):137-46.
Aliverti A. Opto-electronic plethysmography: new findings
in chronic obstructive pulmonary disease. Int J Respir Care.
;(2):45-50.
Aliverti A, Pedotti A. Opto-electronic plethysmography.
Monaldi Arch Chest Dis. 2003;59(1):12-6.
Iandelli I, Aliverti A, Kayser B, Dellaca R, Cala SJ, Duranti R, et
al. Determinants of exercise performance in normal men with
externally imposed expiratory flow limitation. J Appl Physiol.
;92(5):1943-52.
Parreira VF, Vieira DS, Myrrha MA, Pessoa IM, Lage SM,
Britto RR. Optoelectronic plethysmography: a review of the
literature. Rev Bras Fisioter. 2012;16(6):439-53.
Aliverti A, Dellaca R, Pelosi P, Chiumello D, Pedotti A, Gattinoni
L. Optoelectronic plethysmography in intensive care patients.
Am J Respir Crit Care Med. 2000;161(5):1546-52.
Aliverti A, Dellaca R, Pelosi P, Chiumello D, Gatihnoni L,
Pedoti A. Compartmental analysis of breathing in the supine
and prone positions by optoelectronic plethysmography.
Ann Biomed Eng. 2001;29(1):60-70.
Cala SJ, Kenyon CM, Ferrigno G, Carnevali P, Aliverti A,
Pedotti A, et al. Chest wall and lung volume estimation
by optical reflectance motion analysis. J Appl Physiol.
;81(6):2680-9.
Vogiatzis I, Georgiadou O, Golemati S, Aliverti A, Kosmas
E, Kastanakis E, et al. Patterns of dynamic hyperinflation
during exercise and recovery in patients with severe chronic
obstructive pulmonary disease. Thorax. 2005;60(9):723-9.
Aliverti A, Stevenson N, Dellaca RL, Lo Mauro A, Pedotti
A, Calverley PM. Regional chest wall volumes during
exercise in chronic obstructive pulmonary disease. Thorax.
;59(3):210-6.
Vieira DS, Hoffman M, Pereira DA, Britto RR, Parreira VF.
Optoelectronic plethysmography: intra-rater and interrater reliability in healthy subjects. Respir Physiol Neurobiol.
;189(3):473-6.
Dellaca RL, Ventura ML, Zannin E, Natile M, Pedotti A,
Tagliabue P. Measurement of total and compartmental
lung volume changes in newborns by optoelectronic
plethysmography. Pediatr Res. 2010;67(1):11-6.
Kenyon CM, Cala SJ, Yan S, Aliverti A, Scano G, Duranti R, et
al. Rib cage mechanics during quiet breathing and exercise in
humans. J Appl Physiol. 1997;83(4):1242-55.
Duranti R, Filippelli M, Bianchi R, Romagnoli I, Pellegrino
R, Brusasco V, et al. Inspiratory capacity and decrease
in lung hyperinflation with albuterol in COPD. Chest.
;122(6):2009-14.
World Health Organization. Global database on body mass
index: an interactive surveillance tool for monitoring nutrition
transition [Internet]. Geneva: WHO. 2004 [access in: oct. 20
. Available at: http://apps.who.int/bmi.
Pereira CA, Sato T, Rodrigues SC. New reference values for
forced spirometry in white adults in Brazil. J Bras Pneumol.
;33(4):397-406.
Neder JA, Nery LE, Castelo A, Andreoni S, Lerario MC,
Sachs A, et al. Prediction of metabolic and cardiopulmonary
responses to maximum cycle ergometry: a randomised
study. Eur Respir J. 1999;14(6):1304-13.
O’Donnell DE, Webb KA. Exertional breathlessness in
patients with chronic airflow limitation. The role of lung
hyperinflation. Am Rev Respir Dis. 1993;148(5):1351-7.
Dolmage TE, Goldstein RS. Repeatability of inspiratory
capacity during incremental exercise in patients with severe
COPD. Chest. 2002;121(3):708-14.
American Thoracic S, American College of Chest P. ATS/
ACCP Statement on cardiopulmonary exercise testing. Am J
Respir Crit Care Med. 2003;167(2):211-77.
Neder JA, Fuld JP, Overend T, Thirlwell J, Carter R, Stevenson
R, et al. Effects of formoterol on exercise tolerance
in severely disabled patients with COPD. Respir Med.
;101(10):2056-64.
Portney G, Watkins, P.M. Regression. In: Hall PP, editors
Foundations of Clinical Research Applications to Practice. 3a
ed. New Jersey: Pearson Prentice Hall; 2008. p. 539-67.
Bland JM, Altman DG. Statistical methods for assessing
agreement between two methods of clinical measurement.
Lancet. 1986;1(8476):307-10.
Bland JM, Altman DG. Measuring agreement in method
comparison studies. Stat Methods Med Res. 1999;8(2):135-60.
Aliverti A, Dellaca R, Pedotti A. Optoelectronic
plethysmography: a new tool in respiratory medicine. Recent
Prog Med. 2001;92(11):644-7.
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